Replace LM Studio direct integration with aichat-based MCP server, enabling Qwen3-Coder to autonomously use filesystem, shell and web tools via llm-functions. Key changes:
- Update server.py to launch aichat on a dynamic port and handle tool_calls loop
- Add llm-functions directory with prebuilt tools (fs_cat, fs_ls, execute_command, etc.)
- Revise delegation rules to remove file count limit and emphasize autonomous tool usage
- Update agents and skills docs to reflect new architecture and workflow
- Add setup instructions for aichat, argc, jq and llm-functions build step
- Bump MCP server version to 3.0.0
